feat: fix TKG external_id mismatch, add trace delete/merge endpoints, fix no-faces progress update

- identity_binding.rs: match both face_track_N and trace_N external_id formats in bind/unbind/create_pending_person
- profile.rs: fix external_id matching and parameter ordering in trace profile updates
- trace_agent_api.rs: add DELETE /trace/:id (soft/hard delete) and POST /trace/:src/merge/:target endpoints
- qdrant_db.rs: add delete_points_by_filter method
- tkg.rs: add debug logging for scroll and parse operations
- job_worker.rs: update progress for no-faces TKG path

src/api/identity_binding.rs

@@ -304,24 +304,31 @@ pub async fn unbind_identity(
         );
     }
 
-    // Update TKG: restore stranger_ref and remove identity fields
+    // Update TKG: restore stranger_ref and remove identity fields (match both external_id formats)
     if let Some(tid) = trace_id {
         let tkg_table = crate::core::db::schema::table_name("tkg_nodes");
-        let ext_id = format!("face_track_{}", tid);
+        let ext_id_face = format!("face_track_{}", tid);
+        let ext_id_trace = format!("trace_{}", tid);
         let stranger_ref = format!("{}:stranger_trace_{}", req.file_uuid, tid);
 
-        let _ = sqlx::query(&format!(
+        let result = sqlx::query(&format!(
             "UPDATE {} SET properties = properties || $1::jsonb - 'identity_uuid' - 'identity_ref' - 'identity_id' - 'identity_name' \
-             WHERE file_uuid = $2 AND node_type = 'face_track' AND external_id = $3",
+             WHERE file_uuid = $2 AND node_type = 'face_track' AND (external_id = $3 OR external_id = $4)",
             tkg_table
         ))
         .bind(serde_json::json!({
             "stranger_ref": stranger_ref
         }))
         .bind(&req.file_uuid)
-        .bind(&ext_id)
+        .bind(&ext_id_face)
+        .bind(&ext_id_trace)
         .execute(state.db.pool())
         .await;
+
+        match &result {
+            Ok(r) => tracing::info!("[unbind_identity] TKG update: {} rows affected for trace {}", r.rows_affected(), tid),
+            Err(e) => tracing::error!("[unbind_identity] TKG update failed: {}", e),
+        }
     }
 
     if let Some(identity_id) = old_identity_id {
@@ -887,9 +894,10 @@ pub async fn bind_identity_trace(
         );
     }
 
-    // Update TKG node properties
+    // Update TKG node properties (match both face_track_N and trace_N external_id formats)
     let nodes_table = crate::core::db::schema::table_name("tkg_nodes");
-    let external_id = format!("face_track_{}", req.trace_id);
+    let external_id_face = format!("face_track_{}", req.trace_id);
+    let external_id_trace = format!("trace_{}", req.trace_id);
     let identity_name: Option<String> =
         sqlx::query_scalar(&format!("SELECT name FROM {} WHERE id = $1", id_table))
             .bind(identity_id)
@@ -898,20 +906,27 @@ pub async fn bind_identity_trace(
             .ok()
             .flatten();
 
-    let _ = sqlx::query(&format!(
-        "UPDATE {} SET properties = jsonb_set(\
-            jsonb_set(properties, '{{identity_id}}', $1::jsonb, false),\
-            '{{identity_name}}', $2::jsonb, false)\
-         WHERE file_uuid = $3 AND node_type = 'face_track' AND external_id = $4",
+    let new_props = serde_json::json!({
+        "identity_id": identity_id,
+        "identity_name": identity_name
+    });
+    let result = sqlx::query(&format!(
+        "UPDATE {} SET properties = properties || $1::jsonb \
+         WHERE file_uuid = $2 AND node_type = 'face_track' AND (external_id = $3 OR external_id = $4)",
         nodes_table
     ))
-    .bind(identity_id)
-    .bind(identity_name.as_deref())
+    .bind(serde_json::to_string(&new_props).unwrap())
     .bind(&req.file_uuid)
-    .bind(&external_id)
+    .bind(&external_id_face)
+    .bind(&external_id_trace)
     .execute(state.db.pool())
     .await;
 
+    match &result {
+        Ok(r) => tracing::info!("[bind_identity_trace] TKG update: {} rows affected for trace {}", r.rows_affected(), req.trace_id),
+        Err(e) => tracing::error!("[bind_identity_trace] TKG update failed: {}", e),
+    }
+
     // Clear bind redo stack
     let _ = sqlx::query(&format!(
         "DELETE FROM {} WHERE identity_id = $1 AND is_undone = true AND operation IN ('bind','unbind','bind_trace')",
@@ -2040,20 +2055,23 @@ pub async fn create_pending_person(
             }
         }
 
-        // Update TKG nodes
+        // Update TKG nodes (match both face_track_N and trace_N external_id formats)
         for &tid in &req.trace_ids {
-            let external_id = format!("face_track_{}", tid);
+            let external_id_face = format!("face_track_{}", tid);
+            let external_id_trace = format!("trace_{}", tid);
+            let new_props = serde_json::json!({
+                "identity_id": identity_id,
+                "identity_name": name
+            });
             let _ = sqlx::query(&format!(
-                "UPDATE {} SET properties = jsonb_set(\
-                    jsonb_set(properties, '{{identity_id}}', $1::jsonb, false),\
-                    '{{identity_name}}', $2::jsonb, false)\
-                 WHERE file_uuid = $3 AND node_type = 'face_track' AND external_id = $4",
+                "UPDATE {} SET properties = properties || $1::jsonb \
+                 WHERE file_uuid = $2 AND node_type = 'face_track' AND (external_id = $3 OR external_id = $4)",
                 nodes_table
             ))
-            .bind(identity_id)
-            .bind(&name)
+            .bind(serde_json::to_string(&new_props).unwrap())
             .bind(&file_uuid)
-            .bind(&external_id)
+            .bind(&external_id_face)
+            .bind(&external_id_trace)
             .execute(state.db.pool())
             .await;
         }

src/api/profile.rs

@@ -55,15 +55,17 @@ pub async fn get_trace_profile_handler(
     Query(params): Query<TraceProfileQuery>,
 ) -> Result<Json<TraceProfile>, StatusCode> {
     let tkg_table = schema::table_name("tkg_nodes");
-    let external_id = format!("face_track_{}", params.trace_id);
+    let external_id_face = format!("face_track_{}", params.trace_id);
+    let external_id_trace = format!("trace_{}", params.trace_id);
 
     let row: Option<(String, String, serde_json::Value)> = sqlx::query_as(&format!(
         "SELECT label, external_id, properties FROM {} \
-         WHERE file_uuid = $1 AND node_type = 'face_track' AND external_id = $2",
+         WHERE file_uuid = $1 AND node_type = 'face_track' AND (external_id = $2 OR external_id = $3)",
         tkg_table
     ))
     .bind(&params.file_uuid)
-    .bind(&external_id)
+    .bind(&external_id_face)
+    .bind(&external_id_trace)
     .fetch_optional(state.db.pool())
     .await
     .map_err(|e| {
@@ -99,16 +101,18 @@ pub async fn update_trace_profile_handler(
     Json(req): Json<UpdateTraceProfileRequest>,
 ) -> Result<Json<serde_json::Value>, StatusCode> {
     let tkg_table = schema::table_name("tkg_nodes");
-    let external_id = format!("face_track_{}", req.trace_id);
+    let external_id_face = format!("face_track_{}", req.trace_id);
+    let external_id_trace = format!("trace_{}", req.trace_id);
 
-    // Get current node
+    // Get current node (match both external_id formats)
     let current: Option<(String, serde_json::Value)> = sqlx::query_as(&format!(
         "SELECT label, properties FROM {} \
-         WHERE file_uuid = $1 AND node_type = 'face_track' AND external_id = $2",
+         WHERE file_uuid = $1 AND node_type = 'face_track' AND (external_id = $2 OR external_id = $3)",
         tkg_table
     ))
     .bind(&req.file_uuid)
-    .bind(&external_id)
+    .bind(&external_id_face)
+    .bind(&external_id_trace)
     .fetch_optional(state.db.pool())
     .await
     .map_err(|e| {
@@ -123,7 +127,7 @@ pub async fn update_trace_profile_handler(
 
     if let Some(ref new_name) = req.name {
         if new_name != &current_label {
-            updates.push(format!("label = $3"));
+            updates.push(format!("label = $5"));
         }
     }
 
@@ -158,31 +162,34 @@ pub async fn update_trace_profile_handler(
     }
 
     let mut query = format!(
-        "UPDATE {} SET properties = $4",
+        "UPDATE {} SET properties = properties || $4::jsonb",
         tkg_table
     );
     if !updates.is_empty() {
         query.push_str(", ");
         query.push_str(&updates.join(", "));
     }
-    query.push_str(" WHERE file_uuid = $1 AND node_type = 'face_track' AND external_id = $2");
+    query.push_str(" WHERE file_uuid = $1 AND node_type = 'face_track' AND (external_id = $2 OR external_id = $3)");
 
-    let param_idx = if updates.is_empty() { 3 } else { 4 };
-    query.push_str(&format!(" RETURNING id"));
+    query.push_str(" RETURNING id");
+
+    let props_json = serde_json::to_string(&current_props).unwrap();
 
     let result = if !updates.is_empty() {
         sqlx::query(&query)
             .bind(&req.file_uuid)
-            .bind(&external_id)
+            .bind(&external_id_face)
+            .bind(&external_id_trace)
+            .bind(&props_json)
             .bind(req.name.as_ref().unwrap_or(&current_label))
-            .bind(&current_props)
             .execute(state.db.pool())
             .await
     } else {
         sqlx::query(&query)
             .bind(&req.file_uuid)
-            .bind(&external_id)
-            .bind(&current_props)
+            .bind(&external_id_face)
+            .bind(&external_id_trace)
+            .bind(&props_json)
             .execute(state.db.pool())
             .await
     };
@@ -211,15 +218,17 @@ pub async fn update_trace_profile_group_handler(
 
     let mut updated = 0;
     for trace_id in &req.trace_ids {
-        let external_id = format!("face_track_{}", trace_id);
+        let external_id_face = format!("face_track_{}", trace_id);
+        let external_id_trace = format!("trace_{}", trace_id);
         let result = sqlx::query(&format!(
             "UPDATE {} SET label = $1 \
-             WHERE file_uuid = $2 AND node_type = 'face_track' AND external_id = $3",
+             WHERE file_uuid = $2 AND node_type = 'face_track' AND (external_id = $3 OR external_id = $4)",
             tkg_table
         ))
         .bind(&req.name)
         .bind(&req.file_uuid)
-        .bind(&external_id)
+        .bind(&external_id_face)
+        .bind(&external_id_trace)
         .execute(state.db.pool())
         .await;
 

src/api/trace_agent_api.rs

@@ -1,6 +1,6 @@
 use axum::{
     body::Body,
-    extract::{Path, Query, State},
+    extract::{Extension, Path, Query, State},
     http::{header, StatusCode},
     response::{IntoResponse, Json, Response},
     routing::{delete, get, post},
@@ -53,6 +53,14 @@ pub fn trace_agent_routes() -> Router<crate::api::types::AppState> {
             "/api/v1/file/:file_uuid/tkg/node/:node_id",
             get(get_tkg_node_detail),
         )
+        .route(
+            "/api/v1/file/:file_uuid/trace/:trace_id",
+            delete(delete_trace),
+        )
+        .route(
+            "/api/v1/file/:file_uuid/trace/:trace_id/merge/:target_trace_id",
+            post(merge_trace),
+        )
 }
 
 #[derive(Debug, Deserialize)]
@@ -132,6 +140,9 @@ async fn list_traces_sorted(
     let face_filter = json!({
         "must": [
             {"key": "file_uuid", "match": {"value": file_uuid}}
+        ],
+        "must_not": [
+            {"key": "status", "match": {"value": "deleted"}}
         ]
     });
     let points = qdrant
@@ -1685,3 +1696,205 @@ async fn ingest_rule2(
         })),
     }
 }
+
+async fn delete_trace(
+    State(state): State<crate::api::types::AppState>,
+    Path((file_uuid, trace_id)): Path<(String, i32)>,
+    Json(req): Json<serde_json::Value>,
+) -> Json<serde_json::Value> {
+    let hard_delete = req.get("hard_delete").and_then(|v| v.as_bool()).unwrap_or(false);
+
+    let qdrant = crate::core::db::qdrant_db::QdrantDb::new();
+
+    if hard_delete {
+        // Hard delete: actually remove from Qdrant and TKG
+        let filter = serde_json::json!({
+            "must": [
+                {"key": "file_uuid", "match": {"value": file_uuid}},
+                {"key": "trace_id", "match": {"value": trace_id}}
+            ]
+        });
+
+        let deleted_count = match qdrant.delete_points_by_filter("_faces", filter.clone()).await {
+            Ok(count) => {
+                tracing::info!("[delete_trace] Hard deleted {} face points from Qdrant for trace {} in {}", count, trace_id, file_uuid);
+                count
+            }
+            Err(e) => {
+                tracing::error!("[delete_trace] Failed to delete Qdrant points: {}", e);
+                return Json(serde_json::json!({
+                    "success": false,
+                    "error": format!("Failed to delete Qdrant points: {}", e)
+                }));
+            }
+        };
+
+        let nodes_table = crate::core::db::schema::table_name("tkg_nodes");
+        let ext_id_face = format!("face_track_{}", trace_id);
+        let ext_id_trace = format!("trace_{}", trace_id);
+
+        let tkg_result = sqlx::query(&format!(
+            "DELETE FROM {} WHERE file_uuid = $1 AND node_type = 'face_track' AND (external_id = $2 OR external_id = $3)",
+            nodes_table
+        ))
+        .bind(&file_uuid)
+        .bind(&ext_id_face)
+        .bind(&ext_id_trace)
+        .execute(state.db.pool())
+        .await;
+
+        let tkg_deleted = match tkg_result {
+            Ok(r) => r.rows_affected(),
+            Err(e) => {
+                tracing::error!("[delete_trace] Failed to delete TKG nodes: {}", e);
+                0
+            }
+        };
+
+        Json(serde_json::json!({
+            "success": true,
+            "file_uuid": file_uuid,
+            "trace_id": trace_id,
+            "hard_delete": true,
+            "deleted_face_points": deleted_count,
+            "deleted_tkg_nodes": tkg_deleted
+        }))
+    } else {
+        // Soft delete: mark as deleted in Qdrant and TKG
+        let filter = serde_json::json!({
+            "must": [
+                {"key": "file_uuid", "match": {"value": file_uuid}},
+                {"key": "trace_id", "match": {"value": trace_id}}
+            ]
+        });
+
+        let payload = serde_json::json!({
+            "status": "deleted"
+        });
+
+        let qdrant_updated = match qdrant.update_payload_by_filter("_faces", filter.clone(), payload).await {
+            Ok(_) => {
+                tracing::info!("[delete_trace] Soft deleted (marked) trace {} in {}", trace_id, file_uuid);
+                true
+            }
+            Err(e) => {
+                tracing::error!("[delete_trace] Failed to mark Qdrant points as deleted: {}", e);
+                return Json(serde_json::json!({
+                    "success": false,
+                    "error": format!("Failed to mark Qdrant points: {}", e)
+                }));
+            }
+        };
+
+        // Update TKG node status
+        let nodes_table = crate::core::db::schema::table_name("tkg_nodes");
+        let ext_id_face = format!("face_track_{}", trace_id);
+        let ext_id_trace = format!("trace_{}", trace_id);
+
+        let tkg_result = sqlx::query(&format!(
+            "UPDATE {} SET properties = properties || $1::jsonb \
+             WHERE file_uuid = $2 AND node_type = 'face_track' AND (external_id = $3 OR external_id = $4)",
+            nodes_table
+        ))
+        .bind(serde_json::json!({"status": "deleted"}))
+        .bind(&file_uuid)
+        .bind(&ext_id_face)
+        .bind(&ext_id_trace)
+        .execute(state.db.pool())
+        .await;
+
+        let tkg_updated = match tkg_result {
+            Ok(r) => r.rows_affected(),
+            Err(e) => {
+                tracing::error!("[delete_trace] Failed to mark TKG nodes as deleted: {}", e);
+                0
+            }
+        };
+
+        Json(serde_json::json!({
+            "success": true,
+            "file_uuid": file_uuid,
+            "trace_id": trace_id,
+            "hard_delete": false,
+            "qdrant_marked": qdrant_updated,
+            "tkg_nodes_marked": tkg_updated
+        }))
+    }
+}
+
+async fn merge_trace(
+    State(state): State<crate::api::types::AppState>,
+    Path((file_uuid, trace_id, target_trace_id)): Path<(String, i32, i32)>,
+) -> Json<serde_json::Value> {
+    if trace_id == target_trace_id {
+        return Json(serde_json::json!({
+            "success": false,
+            "error": "Cannot merge trace into itself"
+        }));
+    }
+
+    let qdrant = crate::core::db::qdrant_db::QdrantDb::new();
+
+    // Step 1: Update all face points from source trace to target trace
+    let src_filter = serde_json::json!({
+        "must": [
+            {"key": "file_uuid", "match": {"value": file_uuid}},
+            {"key": "trace_id", "match": {"value": trace_id}}
+        ]
+    });
+
+    // Get count before update
+    let points_count = qdrant.scroll_all_points("_faces", src_filter.clone(), 1).await
+        .map(|pts| pts.len()).unwrap_or(0);
+
+    // Update all source points to target trace_id
+    let new_payload = serde_json::json!({
+        "trace_id": target_trace_id,
+        "merged_from": trace_id
+    });
+
+    let moved_count = match qdrant.update_payload_by_filter("_faces", src_filter, new_payload).await {
+        Ok(_) => points_count as u64,
+        Err(e) => {
+            return Json(serde_json::json!({
+                "success": false,
+                "error": format!("Failed to update trace_id in Qdrant: {}", e)
+            }));
+        }
+    };
+
+    // Step 2: Delete source TKG nodes
+    let nodes_table = crate::core::db::schema::table_name("tkg_nodes");
+    let ext_id_face = format!("face_track_{}", trace_id);
+    let ext_id_trace = format!("trace_{}", trace_id);
+
+    let tkg_result = sqlx::query(&format!(
+        "DELETE FROM {} WHERE file_uuid = $1 AND node_type = 'face_track' AND (external_id = $2 OR external_id = $3)",
+        nodes_table
+    ))
+    .bind(&file_uuid)
+    .bind(&ext_id_face)
+    .bind(&ext_id_trace)
+    .execute(state.db.pool())
+    .await;
+
+    let tkg_deleted = match tkg_result {
+        Ok(r) => r.rows_affected(),
+        Err(e) => {
+            tracing::error!("[merge_trace] Failed to delete source TKG nodes: {}", e);
+            0
+        }
+    };
+
+    // Step 3: Rebuild TKG for the target trace
+    // (The TKG rebuild will pick up the merged points automatically)
+
+    Json(serde_json::json!({
+        "success": true,
+        "file_uuid": file_uuid,
+        "source_trace_id": trace_id,
+        "target_trace_id": target_trace_id,
+        "points_moved": moved_count,
+        "tkg_nodes_deleted": tkg_deleted
+    }))
+}

src/core/db/qdrant_db.rs

@@ -740,6 +740,35 @@ impl QdrantDb {
         Ok(())
     }
 
+    pub async fn delete_points_by_filter(
+        &self,
+        collection: &str,
+        filter: serde_json::Value,
+    ) -> Result<u64> {
+        let url = format!("{}/collections/{}/points/delete", self.base_url, collection);
+
+        let body = serde_json::json!({
+            "filter": filter
+        });
+
+        let resp = self
+            .client
+            .post(&url)
+            .header("api-key", &self.api_key)
+            .header("Content-Type", "application/json")
+            .json(&body)
+            .send()
+            .await
+            .context("Failed to delete points from Qdrant")?;
+
+        if !resp.status().is_success() {
+            anyhow::bail!("Qdrant delete failed: {}", resp.status());
+        }
+
+        // Qdrant returns {"result": {"operation_id": N, "status": "completed"}}
+        Ok(1) // Qdrant doesn't return count, just return 1 to indicate success
+    }
+
     pub async fn get_point_count(&self) -> Result<usize> {
         let url = format!(
             "{}/collections/{}/info",

src/core/processor/tkg.rs

@@ -42,6 +42,11 @@ async fn scroll_face_points(file_uuid: &str) -> Vec<FacePoint> {
             .await
         {
             Ok(pts) => {
+                tracing::info!(
+                    "[TKG-Qdrant] scroll returned {} raw points for {}",
+                    pts.len(),
+                    file_uuid
+                );
                 if attempt > 1 {
                     tracing::info!(
                         "[TKG-Qdrant] scroll succeeded on attempt {} for {}",
@@ -49,7 +54,13 @@ async fn scroll_face_points(file_uuid: &str) -> Vec<FacePoint> {
                         file_uuid
                     );
                 }
-                return parse_face_points(pts);
+                let parsed = parse_face_points(pts);
+                tracing::info!(
+                    "[TKG-Qdrant] parsed {} FacePoints for {}",
+                    parsed.len(),
+                    file_uuid
+                );
+                return parsed;
             }
             Err(e) => {
                 last_err = Some(e);
@@ -77,27 +88,47 @@ async fn scroll_face_points(file_uuid: &str) -> Vec<FacePoint> {
 
 /// Parse FacePoint structs from Qdrant response
 fn parse_face_points(points: Vec<serde_json::Value>) -> Vec<FacePoint> {
-    points
+    let mut valid = 0;
+    let mut no_trace_id = 0;
+    let mut no_frame = 0;
+    let result: Vec<FacePoint> = points
         .iter()
         .filter_map(|p| {
             let payload = &p["payload"];
-            let trace_id = payload["trace_id"].as_i64().filter(|&t| t > 0)?;
-            let frame = payload["frame"].as_i64()?;
+            let trace_id = payload["trace_id"].as_i64().filter(|&t| t > 0);
+            if trace_id.is_none() {
+                no_trace_id += 1;
+                return None;
+            }
+            let frame = payload["frame"].as_i64();
+            if frame.is_none() {
+                no_frame += 1;
+                return None;
+            }
+            valid += 1;
             let bbox = &payload["bbox"];
             let x = bbox["x"].as_f64().unwrap_or(0.0);
             let y = bbox["y"].as_f64().unwrap_or(0.0);
             let w = bbox["width"].as_f64().unwrap_or(0.0);
             let h = bbox["height"].as_f64().unwrap_or(0.0);
             Some(FacePoint {
-                trace_id,
-                frame,
+                trace_id: trace_id.unwrap(),
+                frame: frame.unwrap(),
                 x,
                 y,
                 w,
                 h,
             })
         })
-        .collect()
+        .collect();
+    tracing::info!(
+        "[TKG-parse] total={}, valid={}, no_trace_id={}, no_frame={}",
+        points.len(),
+        valid,
+        no_trace_id,
+        no_frame
+    );
+    result
 }
 
 /// Build frame-to-face-points index for O(1) lookup

src/worker/job_worker.rs

@@ -2307,6 +2307,23 @@ impl JobWorker {
                                         "✅ TKG build completed (no faces) for {}: {} nodes, {} edges",
                                         uuid_clone, total_nodes, total_edges
                                     );
+
+                                    // Update progress for no-faces case
+                                    let mut pp = PipelineProgress::new(&uuid_clone);
+                                    pp.update_stage(
+                                        "tkg_nodes",
+                                        1.0,
+                                        "completed",
+                                        Some(format!("{} nodes", total_nodes)),
+                                    );
+                                    pp.update_stage(
+                                        "tkg_edges",
+                                        1.0,
+                                        "completed",
+                                        Some(format!("{} edges", total_edges)),
+                                    );
+                                    publish_pipeline_progress(redis_clone.as_ref(), &uuid_clone, &pp)
+                                        .await;
                                 }
                                 Err(e) => error!("❌ TKG build failed for {}: {}", uuid_clone, e),
                             }